Big September (previously Peakin' Trippers) were a five-piece band from Bray, County Wicklow in Ireland. As of 2007, the band was made up of Scott O'Neill on vocals, Cillian Duane on guitar, Shay Foga
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc50f71c0d90629911b60603530474e3b2940de079825769e66bf7e3bfb323205. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d2a1fc90-e227-4516-b05c-193856a64e1f.json and https://artists.proofprofile.net/proofs/artist/d2a1fc90-e227-4516-b05c-193856a64e1f.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.